TWI441169B - Electrical apparatus and voice signals receiving method thereof - Google Patents
Electrical apparatus and voice signals receiving method thereof Download PDFInfo
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- TWI441169B TWI441169B TW100140695A TW100140695A TWI441169B TW I441169 B TWI441169 B TW I441169B TW 100140695 A TW100140695 A TW 100140695A TW 100140695 A TW100140695 A TW 100140695A TW I441169 B TWI441169 B TW I441169B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0272—Voice signal separating
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
Description
本發明是有關於一種用以接收語音信號的電子裝置，且特別是有關於一種通訊裝置具備有可接收語音信號的電子裝置。The present invention relates to an electronic device for receiving a voice signal, and more particularly to a communication device having an electronic device capable of receiving a voice signal.
請參照圖1，圖1繪示習知的語音接收裝置100的示意圖。習知的語音接收裝置100包括兩個麥克風111及112、語音變化偵測器(voice activity detector,VAD) 120以及雜訊消除器130。Please refer to FIG. 1 , which illustrates a schematic diagram of a conventional voice receiving apparatus 100 . The conventional voice receiving device 100 includes two microphones 111 and 112, a voice activity detector (VAD) 120, and a noise canceller 130.
在習知的語音接收裝置100中，麥克風111被設定為接收主要語音的麥克風，而麥克風112則被設定為接收非主要語音的麥克風。麥克風111及112並分別耦接至語音變化偵測器120以及雜訊消除器130。語音變化偵測器120則由麥克風111及112接收語音，並將麥克風111所接收的語音以語音信號的方式透過語音傳送通道MT傳送至雜訊消除器130。同時，語音變化偵測器120將由麥克風112所提供的語音信號透過雜訊傳送通道NT傳送至雜訊消除器130。雜訊消除器130則依據由雜訊傳送通道NT傳至的語音信號來消除由語音傳送通道MT傳至的語音信號的雜訊部份，以獲得較清楚的語音信號。In the conventional voice receiving apparatus 100, the microphone 111 is set as a microphone that receives a main voice, and the microphone 112 is set as a microphone that receives a non-primary voice. The microphones 111 and 112 are coupled to the voice change detector 120 and the noise canceller 130, respectively. The voice change detector 120 receives the voices from the microphones 111 and 112, and transmits the voice received by the microphone 111 to the noise canceller 130 through the voice transmission channel MT as a voice signal. At the same time, the voice change detector 120 transmits the voice signal provided by the microphone 112 to the noise canceller 130 through the noise transmission channel NT. The noise canceller 130 removes the noise portion of the voice signal transmitted by the voice transmission channel MT according to the voice signal transmitted from the noise transmission channel NT to obtain a clearer voice signal.
然而，在實際的應用中，不見得麥克風111所接收到的必然是主要語音信號。在多人的會議中，接收主要語音信號的麥克風是動態在改變的。因此，在應用習知的語音接收裝置100時，需要不時的由使用者來調整主要麥克風111的位置，才可以獲得較清楚的語音信號。在使用上是相當不方便的。However, in practical applications, it is not necessarily the main speech signal that the microphone 111 receives. In a multi-person conference, the microphone receiving the primary voice signal is dynamically changing. Therefore, when the conventional speech receiving apparatus 100 is applied, it is necessary for the user to adjust the position of the main microphone 111 from time to time to obtain a clearer speech signal. It is quite inconvenient to use.
本發明提供一種電子裝置，適應性的偵測出多個語音信號中的主要語音信號及非主要語音信號，並有效降低語音信號的雜訊。The invention provides an electronic device, which adaptively detects a main speech signal and a non-primary speech signal among a plurality of speech signals, and effectively reduces noise of the speech signal.
本發明另提供一種電子裝置，適應性的偵測出多個語音信號中的主要語音信號及非主要語音信號，並有效降低語音信號的雜訊。The present invention further provides an electronic device that adaptively detects a primary voice signal and a non-primary voice signal among a plurality of voice signals, and effectively reduces noise of the voice signal.
本發明提出一種電子裝置，包括多個語音接收器、語音變化偵測器、信號通道切換器以及雜訊消除器。語音接收器，用以接收多數個語音，並將語音轉換成語音信號。語音變化偵測器耦接語音接收器，用以接收並偵測語音信號，並獲得語音信號中的主要語音信號。信號通道切換器耦接語音接收器及語音變化偵測器，依據語音變化偵測器的偵測結果，使主要語音信號傳向語音傳送通道，並使語音信號中非主要語音信號的多個其他語音信號傳向雜訊傳送通道。雜訊消除器耦接語音傳送通道以及雜訊傳送通道，並依據雜訊傳送通道的其他語音信號來減低語音傳送通道中的主要語音信號的雜訊。The invention provides an electronic device comprising a plurality of voice receivers, a voice change detector, a signal channel switcher and a noise canceller. A voice receiver for receiving a plurality of voices and converting the voice into voice signals. The voice change detector is coupled to the voice receiver for receiving and detecting the voice signal and obtaining the main voice signal in the voice signal. The signal channel switch is coupled to the voice receiver and the voice change detector, and according to the detection result of the voice change detector, the main voice signal is transmitted to the voice transmission channel, and the voice signal is non-primary voice signal. The voice signal is transmitted to the noise transmission channel. The noise canceller is coupled to the voice transmission channel and the noise transmission channel, and reduces noise of the main voice signal in the voice transmission channel according to other voice signals of the noise transmission channel.
在本發明一實施例中，上述之語音變化偵測器依據各語音信號的特徵函數來判別各語音是否為主要語音信號。In an embodiment of the invention, the voice change detector determines whether each voice is a primary voice signal according to a feature function of each voice signal.
在本發明一實施例中，上述之語音變化偵測器針對語音信號設定多個識別編號，語音變化偵測器並依據主要語音信號的識別編號來產生指示訊號。In an embodiment of the invention, the voice change detector sets a plurality of identification numbers for the voice signal, and the voice change detector generates the indication signal according to the identification number of the primary voice signal.
在本發明一實施例中，上述之信號通道切換器接收指示訊號，使識別編號等於指示訊號的主要語音信號傳送至語音傳送通道，並使識別編號不等於指示訊號的語音信號傳送至雜訊傳送通道。In an embodiment of the invention, the signal channel switch receives the indication signal, so that the primary voice signal whose identification number is equal to the indication signal is transmitted to the voice transmission channel, and the voice signal whose identification number is not equal to the indication signal is transmitted to the noise transmission. aisle.
在本發明一實施例中，上述之雜訊消除器為處理器，用以執行雜訊消除演算法，來依據雜訊傳送通道的其他語音信號來消減低語音傳送通道中的主要語音信號的雜訊。In an embodiment of the invention, the noise canceller is a processor configured to perform a noise cancellation algorithm to reduce the main voice signal in the low voice transmission channel according to other voice signals of the noise transmission channel. News.
本發明另提出一種電子裝置，包括語音接收裝置。語音接收裝置上配置多個語音接收器以接收多個語音，並將語音轉換成多個語音信號，其中，語音接收裝置包括語音變化偵測器、信號通道切換器以及雜訊消除器。語音變化偵測器耦接語音接收器，接收並偵測語音信號，並獲知語音信號中的主要語音信號。信號通道切換器耦接語音接收器及語音變化偵測器，用以依據語音變化偵測器的偵測結果，使主要語音信號傳向語音傳送通道，並使語音中非主要語音信號的多個其他語音信號傳向雜訊傳送通道。雜訊消除器耦接語音傳送通道以及雜訊傳送通道，並依據雜訊傳送通道的其他語音信號來減低語音傳送通道中的主要語音信號的雜訊。The invention further provides an electronic device comprising a voice receiving device. The voice receiving device is configured with a plurality of voice receivers to receive a plurality of voices and convert the voice into a plurality of voice signals, wherein the voice receiving device comprises a voice change detector, a signal channel switcher and a noise canceller. The voice change detector is coupled to the voice receiver, receives and detects the voice signal, and learns the main voice signal in the voice signal. The signal channel switch is coupled to the voice receiver and the voice change detector, and is configured to transmit the main voice signal to the voice transmission channel according to the detection result of the voice change detector, and enable multiple voice signals in the voice. Other voice signals are transmitted to the noise transmission channel. The noise canceller is coupled to the voice transmission channel and the noise transmission channel, and reduces noise of the main voice signal in the voice transmission channel according to other voice signals of the noise transmission channel.
本發明更提出一種語音的處理方法，包括：接收多數個語音，並將語音轉換成語音信號；透過偵測語音信號，並獲得語音信號中的主要語音信號；以及，將主要語音信號傳向語音傳送通道，並將語音信號中非主要語音信號的多個其他語音信號傳向雜訊傳送通道；並且，依據雜訊傳送通道的其他語音信號來減低語音傳送通道中的主要語音信號的雜訊。The invention further provides a method for processing a voice, comprising: receiving a plurality of voices and converting the voice into a voice signal; detecting the voice signal and obtaining a main voice signal in the voice signal; and transmitting the main voice signal to the voice The transmission channel transmits a plurality of other voice signals of the non-primary voice signal in the voice signal to the noise transmission channel; and, according to other voice signals of the noise transmission channel, the noise of the main voice signal in the voice transmission channel is reduced.
基於上述，本發明透過動態的偵測多個語音信號，來藉以偵知其中的主要語音信號。並利用主要語音信號與其他的非主要語音信號進行雜訊減低的動作，以獲得低雜訊的高品質的語音信號。Based on the above, the present invention detects a plurality of voice signals by dynamically detecting the main voice signals therein. The main speech signal and other non-primary speech signals are used for noise reduction to obtain high-quality speech signals with low noise.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
請參照圖2，圖2繪示本發明的一實施例的電子裝置200的示意圖。電子裝置200包括多個語音接收器211~21N、語音變化偵測器220、信號通道切換器230以及雜訊消除器240。語音接收器211~21N配置在語音接收裝置200上，用以接收來自多個不同方向的多個語音，並將所接收到語音轉換成語音信號。Please refer to FIG. 2. FIG. 2 is a schematic diagram of an electronic device 200 according to an embodiment of the present invention. The electronic device 200 includes a plurality of voice receivers 211 21 21N, a voice change detector 220, a signal channel switch 230, and a noise canceller 240. The voice receivers 211 to 21N are disposed on the voice receiving device 200 for receiving a plurality of voices from a plurality of different directions and converting the received voice into a voice signal.
語音變化偵測器220則耦接語音接收器211~21N，並接收語音接收器211~21N所傳送的語音信號。此外，語音變化偵測器220還針對這些語音信號進行偵測，並獲得語音接收器211~21N所接收的語音信號中，何者為主要語音信號。The voice change detector 220 is coupled to the voice receivers 211 21 21 N and receives the voice signals transmitted by the voice receivers 211 21 21 N. In addition, the voice change detector 220 detects the voice signals and obtains the voice signals received by the voice receivers 211 21 21N, which are the main voice signals.
以下請同步參照圖2以及圖3，其中圖3繪示語音的頻譜圖。語音變化偵測器220接收由語音接收器211~21N所提供的多個語音信號，並分別藉由偵測各語音信號的頻譜的特徵函數來判斷各語音信號是否為主要語音信號。其中，以圖3繪示的頻譜圖為例，語音信號的頻譜中對應不同的頻率具有多個端點C1~C4。語音變化偵測器220可以藉由偵測各語音信號的端點C1~C4的數量，來獲知各語音信號是否為最接近人聲的語音信號，也就是主要語音信號。Please refer to FIG. 2 and FIG. 3 simultaneously, wherein FIG. 3 shows a spectrogram of speech. The voice change detector 220 receives the plurality of voice signals provided by the voice receivers 211 21 21N, and determines whether each voice signal is a primary voice signal by detecting a feature function of the spectrum of each voice signal. For example, taking the spectrum diagram shown in FIG. 3 as an example, the frequency spectrum of the voice signal has multiple endpoints C1 C C4 corresponding to different frequencies. The voice change detector 220 can detect whether each voice signal is the voice signal closest to the voice, that is, the main voice signal, by detecting the number of the endpoints C1 C C4 of each voice signal.
語音變化偵測器220是透過一種語音變化偵測的演算法來進行語音信號的針測動作。這種語音變化偵測的演算法有可稱為端點偵測法(endpoint detection)。語音變化偵測器220則可以依據所偵測的語音信號中如上述的特徵函數(如頻譜中的端點)來進行偵測，常見的語音信號變化偵測的演算法包括低頻帶頻譜強度(low-frequency spectral magnitude,LFSM)、全頻帶頻譜強度(full-bandspectral magnitude,FBSM)、累積量化頻譜(cumulative quantized spectrum,CQS)、以及高通對數能量(high-pass log-energy,HPLE)等。The voice change detector 220 performs a pinhole action of the voice signal through an algorithm for voice change detection. This speech change detection algorithm can be called endpoint detection. The voice change detector 220 can detect according to the above-mentioned feature function (such as an endpoint in the spectrum) of the detected voice signal, and the common voice signal change detection algorithm includes a low-band spectrum intensity ( Low-frequency spectral magnitude (LFSM), full-band spectral magnitude (FBSM), cumulative quantized spectrum (CQS), and high-pass log-energy (HPLE).
附帶一提的，語音變化偵測器220可以針對所接收的語音信號進行識別編號的設定，例如針對語音接收器211~21N所接收的語音設定1~N的識別編號。若語音變化偵測器220偵測出例如語音接收器215所接收的語音為主要語音，則語音變化偵測器220依據語音接收器215的語音的識別編號5來產生指示訊號。簡單來說，指示訊號可以是5的數位格式碼，也就是“0101”。Incidentally, the voice change detector 220 can set the identification number for the received voice signal, for example, the identification number of the voice received by the voice receivers 211 to 21N. If the voice change detector 220 detects that the voice received by the voice receiver 215 is the primary voice, the voice change detector 220 generates an indication signal according to the voice identification number 5 of the voice receiver 215. In simple terms, the indication signal can be a digital format code of 5, which is "0101".
請重新參照圖2，信號通道切換器230耦接語音接收器211~21N及語音變化偵測器220。信號通道切換器230依據語音變化偵測器220的偵測結果，使語音接收器211~21N所提供的語音信號中的主要語音信號傳向語音傳送通道MT。並且，信號通道切換器230還使語音接收器211~21N所提供的語音信號中非主要語音信號的多個其他語音信號傳向雜訊傳送通道NT。延續上述語音變化偵測器220的例子，當信號通道切換器230接收到語音變化偵測器220所傳送的“0101”的指示訊號，就可以獲知識別編號5的語音信號為主要語音信號。據此，信號通道切換器230就可以將識別編號等於5的語音信號傳送至語音傳送通道MT，並將識別編號不等於5的語音信號傳送至雜訊傳送通道NT。Referring to FIG. 2 again, the signal channel switch 230 is coupled to the voice receivers 211 21 21 N and the voice change detector 220. The signal channel switcher 230 transmits the main voice signal in the voice signal provided by the voice receivers 211~21N to the voice transmission channel MT according to the detection result of the voice change detector 220. Moreover, the signal channel switcher 230 also transmits a plurality of other voice signals of the non-primary voice signals among the voice signals provided by the voice receivers 211 to 21N to the noise transmission channel NT. Continuing the example of the voice change detector 220, when the signal channel switcher 230 receives the indication signal of "0101" transmitted by the voice change detector 220, it can be known that the voice signal of the identification number 5 is the primary voice signal. Accordingly, the signal channel switcher 230 can transmit the voice signal having the identification number equal to 5 to the voice transmission channel MT, and transmit the voice signal having the identification number not equal to 5 to the noise transmission channel NT.
雜訊消除器240耦接語音傳送通道MT以及雜訊傳送通道NT，並由語音傳送通道MT以及雜訊傳送通道NT來接收主要語音信號以及非主要語音信號。請特別注意，在語音信號的辨識中，影響語音辨識結果的因素很多。其中的重要因素為環境中所包含的加成性雜訊(additive noise)、摺積性雜訊(convolutional noise)以及語音傳送的頻寬限制(bandwidth limitation)等因素。其中，加成性雜訊也可說是背景雜訊，這是因為語音接收裝置所處在的環境所可能產生的聲音，都被加成到語音信號之中，並造成語音信號辨識的困難。摺積性雜訊也稱為通道雜訊或是通道失真，主要是因為語音接收器211~21N(例如麥克風)的不同、其所使用的傳輸線材的遮蔽效應不好而受外在電磁波影響所造成的。The noise canceller 240 is coupled to the voice transmission channel MT and the noise transmission channel NT, and receives the primary voice signal and the non-primary voice signal by the voice transmission channel MT and the noise transmission channel NT. Please pay special attention to the fact that there are many factors affecting the speech recognition result in the recognition of speech signals. The important factors are the additive noise, the convolutional noise and the bandwidth limitation of the voice transmission. Among them, the additive noise can also be said to be background noise, because the sound that may be generated in the environment in which the voice receiving device is located is added to the voice signal, and the difficulty of voice signal recognition is caused. Deconvolution noise is also called channel noise or channel distortion, mainly because the voice receivers 211~21N (such as microphones) are different, and the shielding effect of the transmission wires used by them is not affected by external electromagnetic waves. Caused.
因此，雜訊消除器240可以依據由雜訊傳送通道NT所接收到的一個或多個的非主要語音信號，來做為此環境所產生的雜訊資訊的資料庫。雜訊消除器240並可以依據這個雜訊資訊的資料庫來針對主語音信號中的雜訊進行消除的動作，更能達到依據不同的使用環境以及硬體的操作狀態及限制，來提升減低主語音信號中的雜訊的能力。Therefore, the noise canceller 240 can perform a database of noise information generated for the environment according to one or more non-primary voice signals received by the noise transmission channel NT. The noise canceller 240 can also perform the action of eliminating the noise in the main voice signal according to the database of the noise information, and can further improve the reduction according to different usage environments and hardware operating states and restrictions. The ability of noise in voice signals.
在本實施中，雜訊消除器240可以直接利用硬體電路來建構，或也可以利用具有運算能力的處理器來執行雜訊消除器演算法的軟體程式來執行雜訊減低的動作。In this implementation, the noise canceller 240 may be constructed directly using a hardware circuit, or a processor having a computing capability may be used to execute a software program of the noise canceller algorithm to perform a noise reduction operation.
以下請參照圖4，圖4繪示本發明一實施例的通訊裝置400的示意圖。通訊裝置400的電子裝置包括語音接收裝置420，且語音接收裝置420配置多個語音接收器411~414以接收多個語音，並將語音轉換成多個語音信號。在本實施例中，語音接收器411~414分別配置在通訊裝置400的四個側邊，並藉以接收來自於不同方向的多個語音。簡單來說，當接近語音接收器411的與會者發表言論時，語音接收裝置420可以判斷出語音接收器411所提供的語音信號為主要語音信號，而語音接收器412~413所接收的非主要語音可能是會議環境的雜音或是通訊裝置400中的各元件的相互干擾所產生的雜音等各項因素的至少其中之一。據此，語音接收裝置420可以依據語音接收器412~413所接收的非主要語音信號來做為雜訊的判斷基礎，並藉以有效減低主要語音信號中的雜訊，提升語音信號的品質。Referring to FIG. 4, FIG. 4 is a schematic diagram of a communication device 400 according to an embodiment of the present invention. The electronic device of the communication device 400 includes a voice receiving device 420, and the voice receiving device 420 configures a plurality of voice receivers 411-414 to receive a plurality of voices and convert the voice into a plurality of voice signals. In this embodiment, the voice receivers 411-414 are respectively disposed on the four sides of the communication device 400, and thereby receive a plurality of voices from different directions. Briefly, when a participant approaching the voice receiver 411 makes a speech, the voice receiving device 420 can determine that the voice signal provided by the voice receiver 411 is the primary voice signal, and the voice receivers 412 to 413 receive the non-primary voice signals. The voice may be at least one of various factors such as noise of the conference environment or noise generated by mutual interference of various components in the communication device 400. Accordingly, the voice receiving device 420 can use the non-primary voice signal received by the voice receivers 412-413 as the basis for determining the noise, thereby effectively reducing the noise in the main voice signal and improving the quality of the voice signal.
以下請參照圖5，圖5繪示本發明一實施例的語音的處理方法的流程圖。其中的步驟包括：首先，接收多個語音，並將語音轉換成語音信號(S510)。接著，偵測語音信號，並獲得語音信號中的主要語音信號(S520)。然後，將主要語音信號傳向語音傳送通道，並將語音信號中非主要語音信號的多個其他語音信號傳向雜訊傳送通道(S530)。再依據雜訊傳送通道的其他語音信號來減低語音傳送通道中的主要語音信號的雜訊(S540)。關於本發明實施例的語音處理的動作細節，在前述的實施例中已有詳細的說明，以下不多贅述。Referring to FIG. 5, FIG. 5 is a flowchart of a method for processing a voice according to an embodiment of the present invention. The steps therein include first receiving a plurality of voices and converting the voice into a voice signal (S510). Next, the voice signal is detected, and the main voice signal in the voice signal is obtained (S520). Then, the main voice signal is transmitted to the voice transmission channel, and a plurality of other voice signals of the non-primary voice signal in the voice signal are transmitted to the noise transmission channel (S530). The noise of the main voice signal in the voice transmission channel is further reduced according to other voice signals of the noise transmission channel (S540). The details of the operation of the speech processing according to the embodiment of the present invention have been described in detail in the foregoing embodiments, and will not be further described below.
綜上所述，本發明藉由針對多個語音接收器所獲得的語音信號進行判斷，並藉以獲得其中的主要語音信號及非主要語音信號。再透過依據非主要語音信號所進行的主要語音信號的雜訊消除動作，來提升主要語音信號的品質。由於語音接收器中的主要語音接收器是動態調整的，因此，語音接收裝置420並不需要針對使用者的位置來進行調整，不但兼顧了使用上的便利性，也有效達成提升語音品質的效果。In summary, the present invention judges by using a voice signal obtained for a plurality of voice receivers, and obtains a primary voice signal and a non-primary voice signal therein. The quality of the main speech signal is improved by the noise cancellation action of the main speech signal based on the non-primary speech signal. Since the main voice receiver in the voice receiver is dynamically adjusted, the voice receiving device 420 does not need to be adjusted for the position of the user, and not only the convenience in use but also the effect of improving the voice quality is effectively achieved. .
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
100．．．語音接收裝置100. . . Voice receiving device
200、420．．．電子裝置200, 420. . . Electronic device
111、112．．．麥克風111, 112. . . microphone
120、220．．．語音變化偵測器120, 220. . . Voice change detector
130、240．．．雜訊消除器130, 240. . . Noise canceller
211~21N、411~414．．．語音接器211~21N, 411~414. . . Voice connector
230．．．信號通道切換器230. . . Signal channel switcher
400．．．通訊裝置400. . . Communication device
MT．．．語音傳送通道MT. . . Voice transmission channel
NT．．．雜訊傳送通道NT. . . Noise transmission channel
C1~C4．．．端點C1~C4. . . End point
S510~S540．．．語音的處理方法的步驟S510~S540. . . Steps in the processing of voice
圖1繪示習知的語音接收裝置100的示意圖。FIG. 1 is a schematic diagram of a conventional voice receiving apparatus 100.
圖2繪示本發明的一實施例的電子裝置200的示意圖。FIG. 2 is a schematic diagram of an electronic device 200 according to an embodiment of the invention.
圖3繪示語音的頻譜圖。Figure 3 depicts a spectrogram of speech.
圖4繪示本發明一實施例的通訊裝置400的示意圖。FIG. 4 is a schematic diagram of a communication device 400 according to an embodiment of the invention.
圖5繪示本發明一實施例的語音的處理方法的流程圖。FIG. 5 is a flow chart of a method for processing a voice according to an embodiment of the present invention.
200．．．電子裝置200. . . Electronic device
211~21N．．．語音接器211~21N. . . Voice connector
220．．．語音變化偵測器220. . . Voice change detector
230．．．信號通道切換器230. . . Signal channel switcher
240．．．雜訊消除器240. . . Noise canceller
MT．．．語音傳送通道MT. . . Voice transmission channel
NT．．．雜訊傳送通道NT. . . Noise transmission channel
Claims (14)
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| KR102094392B1 (en) * | 2013-04-02 | 2020-03-27 | 삼성전자주식회사 | User device having a plurality of microphones and operating method thereof |
| CN104810018B (en) * | 2015-04-30 | 2017-12-12 | 安徽大学 | The Method of Speech Endpoint Detection based on the estimation of dynamic accumulative amount |
| CN105139853A (en) * | 2015-08-13 | 2015-12-09 | 深圳市双平泰科技有限公司 | Control method and control device for sign detector |
| CN111641794B (en) * | 2020-05-25 | 2023-03-28 | 维沃移动通信有限公司 | Sound signal acquisition method and electronic equipment |
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| US4941187A (en) * | 1984-02-03 | 1990-07-10 | Slater Robert W | Intercom apparatus for integrating disparate audio sources for use in light aircraft or similar high noise environments |
| US5758256A (en) * | 1995-06-07 | 1998-05-26 | Hughes Electronics Corporation | Method of transporting speech information in a wireless cellular system |
| US6018525A (en) * | 1996-03-11 | 2000-01-25 | Sprint Communications Company, L.P. | ATM transport of voice band signals with channel associated signaling |
| DE69831991T2 (en) * | 1997-03-25 | 2006-07-27 | Koninklijke Philips Electronics N.V. | Method and device for speech detection |
| US6353609B1 (en) * | 1998-06-19 | 2002-03-05 | Marconi Communications, Inc. | Digital packet network for the local access loop |
| US6804340B2 (en) * | 2001-05-03 | 2004-10-12 | Raytheon Company | Teleconferencing system |
| US7158933B2 (en) * | 2001-05-11 | 2007-01-02 | Siemens Corporate Research, Inc. | Multi-channel speech enhancement system and method based on psychoacoustic masking effects |
| US6990194B2 (en) * | 2003-05-19 | 2006-01-24 | Acoustic Technology, Inc. | Dynamic balance control for telephone |
| US7464029B2 (en) * | 2005-07-22 | 2008-12-09 | Qualcomm Incorporated | Robust separation of speech signals in a noisy environment |
| EP2047669B1 (en) | 2006-07-28 | 2014-05-21 | Unify GmbH & Co. KG | Method for carrying out an audio conference, audio conference device, and method for switching between encoders |
| JP4582238B2 (en) * | 2006-08-30 | 2010-11-17 | 日本電気株式会社 | Audio mixing method and multipoint conference server and program using the method |
| US8503686B2 (en) * | 2007-05-25 | 2013-08-06 | Aliphcom | Vibration sensor and acoustic voice activity detection system (VADS) for use with electronic systems |
| CN101192411B (en) | 2007-12-27 | 2010-06-02 | 北京中星微电子有限公司 | Large distance microphone array noise cancellation method and noise cancellation system |
| EP2416315B1 (en) * | 2009-04-02 | 2015-05-20 | Mitsubishi Electric Corporation | Noise suppression device |
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